UIButton not firing - ios

Question

I have a UIButton dynamically created inside a UITapGestureRecognizer, I have set the button handler but the handler never gets called when the button is pressed.
Here is how I am creating the UIButton in the tap gesture:
UIButton *uiButton = [[UIButton alloc] init];
[uiButton setTitle:#"Back" forState:UIControlStateNormal];
[uiButton setFrame:CGRectMake(0, 20, 80, 25)];
[uiButton addTarget:self action:#selector(myButtonClick) forControlEvents:UIControlEventTouchDown];
And this is the Button Handler:
- (void)myButtonClick {
// button was tapped - do something
if(NULL) {
}
}
This has been EDITED:
- (void)handleSingleTap:(UITapGestureRecognizer *)recognizer {
CGPoint location = [recognizer locationInView:[recognizer.view superview]];
CGPoint touchPoint=[recognizer locationInView:[recognizer.view superview]];
UIViewMenuItem *tempView = (UIViewMenuItem *)recognizer.view;
NSNumber *tag = [NSNumber numberWithInt:tempView.tag];
NSString *idCat = [tempView getCatId];
NSLog(#"TAG %#",idCat);
//NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString: [NSString stringWithFormat:#"http://localhost:8888/MAMP/WHFC/SubCategories.php?categoryid//=%d", idCat]]];
NSString *myRequestString = [NSString stringWithFormat:#"categoryid=%#",idCat];
// Create Data from request
NSData *myRequestData = [NSData dataWithBytes: [myRequestString UTF8String] length: [myRequestString length]];
NSMutableURLRequest *request = [[NSMutableURLRequest alloc] initWithURL: [NSURL URLWithString: #"http://localhost:8888/MAMP/WHFC/SubCategories.php"]];
// set Request Type
[request setHTTPMethod: #"POST"];
// Set content-type
[request setValue:#"application/x-www-form-urlencoded" forHTTPHeaderField:#"content-type"];
// Set Request Body
[request setHTTPBody: myRequestData];
// Now send a request and get Response
NSData *data = [NSURLConnection sendSynchronousRequest: request returningResponse: nil error: nil];
// Log Response
NSString *response = [[NSString alloc] initWithBytes:[data bytes] length:[data length] encoding:NSUTF8StringEncoding];
NSError *err;
NSArray *arrCategoryList = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingAllowFragments error:&err];
const unsigned char *ptr = [data bytes];
for(int i=0; i<[data length]; ++i) {
unsigned char c = *ptr++;
NSLog(#"char=%c hex=%x", c, c);
}
self.data = [[NSMutableArray alloc] init];
for(NSDictionary *dictCategory in arrCategoryList)
{
NSString *strCategoryId = [dictCategory objectForKey:#"CategoryId"];
NSString *strCategoryName = [dictCategory objectForKey:#"Name"];
NSLog(#"%# : %#",strCategoryId,strCategoryName);
Listing *listing = [[Listing alloc] init];
listing.catId = strCategoryId;
listing.name = strCategoryName;
[self.data addObject:listing];
}
UIViewController *viewController = [[UIViewController alloc] init];
viewController.view.backgroundColor = [UIColor whiteColor];
UIView *uiView = [[UIView alloc] init];
[uiView setFrame:CGRectMake(0, 480, 320, 480)];
[uiView setBackgroundColor:[UIColor grayColor]];
viewController.view = uiView;
UINavigationBar *uiNavigationBar = [[UINavigationBar alloc] init];
[uiView setFrame:CGRectMake(0, 0, 320, 50)];
[uiView addSubview:uiNavigationBar];
UIButton *uiButton = [[UIButton alloc] init];
[uiButton setTitle:#"Back" forState:UIControlStateNormal];
[uiButton setFrame:CGRectMake(0, 20, 80, 25)];
[uiButton addTarget:self action:#selector(myButtonClick) forControlEvents:UIControlEventTouchDown];
[uiNavigationBar addSubview:uiButton];
uiTableView1 = [[UITableView alloc] init];
[uiTableView1 setFrame:CGRectMake(0, 50, 320, 480)];
uiTableView1.dataSource = self;
uiTableView1.delegate = self;
[uiView addSubview:uiTableView1];
[self presentViewController:viewController animated:YES completion:nil];
//Do stuff here...
}
- (void)myButtonClick {
// button was tapped - do something
if(NULL) {
}
}

Answer 1

Maybe your gesture recognizer is catching the touch and therefor is never reaching the button. To let the button get the event you have to set the delegate of UIGestureRecognizerDelegate and implement something like this
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
if ((touch.view == mybutton)||(touch.view == anyOtherButton)) {
return NO;
}
return YES;
}
hope it helps

Answer 2

Biggest mistake you have made is you used forControlEvents is UIControlEventTouchDown. Your requirement is different here.`
Solution : It should be UIControlEventTouchUpInside as button gets clicked when touched.
Replace below line with yours
[uiButton addTarget:self action:#selector(myButtonClick) forControlEvents:UIControlEventTouchUpInside];
EDIT : Also superview of button is out of bound ie y is 480 it should be 0
Replace below line with yours
[uiView setFrame:CGRectMake(0, 0, 320, 480)];